AP (Advanced Placement) Physics(B-C): Questions 790 - 794 of 920

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Question number: 790

» Periodic Motion, Mechanical Waves & Sound

MCQ▾

Question

The equation of displacement of an object of mass , which oscillates with a spring is . What is the spring constant?

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Choice (5) Response

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All of the above

Question number: 791

» Atomic & Nuclear Physics

MCQ▾

Question

At temperature , the black body radiation energy density is nearly:

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Question does not provide sufficient data or is vague

Question number: 792

» Work, Energy and Power

MCQ▾

Question

The gravitational potential energy of a system of two objects of masses separated by distance , is equal to . In second system of two objects of masses , are separated by distance . What is the potential energy of the second system?

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Choice (5) Response

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All of the above

Question number: 793

» Thermodynamics

MCQ▾

Question

A window is made of a material with a thermal conductivity of and has the dimensions thick. The temperature at one side is , and the other side temperature is . Determine the rate of heat transfer through the window.

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Choice (5) Response

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None of the above

Question number: 794

» Atomic & Nuclear Physics

MCQ▾

Question

The threshold frequency for the ejection of photoelectrons from a metal is . What is the kinetic energy of photoelectrons ejected by the light of frequency ?

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Choice (5) Response

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Question does not provide sufficient data or is vague

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